Alphasense Gas Sensors – Unlocking Excellence in Gas Detection
Alphasense delivers world-class gas sensing technologies trusted by industrial workers and OEM manufacturers of portable and fixed gas detectors worldwide. Our sensors are engineered for precision, reliability, and compliance, ensuring safety and performance in critical environments. Explore our major product families below:
Oxygen Sensors
Accurate O₂ measurement for industrial safety. Commonly used in wearable and installed confined space monitors.
Carbon Monoxide Sensors
Protect workers from CO exposure with sensors engineered for precision and low cross-sensitivity. Commonly used in wearable and installed confined space monitors.
Ideal for workplace safety in chemical plants, refineries, and mining.
Hydrogen Sulfide Sensors
Exceptional sensitivity and stability for oil & gas, wastewater, and chemical processing safety. Commonly used in wearable and installed confined space monitors.
H2S sensors are widely applied in oil & gas facilities, wastewater treatment plants, and chemical industries for leak detection and worker protection.
Nitric Oxide and Nitrogen Dioxide Sensors
Ideal for air quality and emissions monitoring.
NO and NO2 sensors are used in environmental monitoring stations, industrial emissions control, and research applications for air quality compliance.
Sulfur Dioxide Sensors
Accurate detection for environmental compliance and industrial processes. Commonly used in wearable, installed confined space monitors and outdoor environmental stations.
SO2 sensors are applied in power plants, industrial scrubbers, and environmental monitoring for regulatory compliance.
VOC Sensors
Advanced photoionization technology for volatile organic compound (VOC) detection. Commonly used in wearable, installed confined space monitors and outdoor environmental stations. VOC sensors are common in air quality monitoring, industrial hygiene, safety and environmental applications.
Particulate Sensors
Optical particle counters (OPCs) for dust monitoring in air quality systems. Commonly used in wearable, installed confined space monitors and outdoor environmental stations.
OPCs are used in environmental monitoring networks, cleanroom applications, and industrial dust control systems. They can measure Particulate Matter (PM) concentrations: PM1, PM2.5 and PM10, critical for health hazard assessment.
Dual Toxic Sensors
Combined 2 sensors into 1 housing to save space, dual toxic sensors combine H2S sensing with CO or SO2 gas measurements. Commonly used in wearable and installed confined space monitors.
Used in safety and industrial site monitoring markets.
Specialty Toxics
Sensors for additional hazardous gases to ensure comprehensive safety. Commonly used in wearable and installed confined space monitors.
Includes sensors for Ozone (O₃), Chlorine (Cl₂), Phosphine (PH₃), Ammonia (NH₃), Hydrogen Cyanide (HCN), Hydrogen Chloride (HCl), Ethylene Oxide (EtO), and Hydrogen Peroxide (H₂O₂). These are applied in chemical processing, water treatment, semiconductor manufacturing, and specialized industrial safety applications.
Flammable Gas
Monitoring methane (CH4) for its lower explosive limit (LEL) is critical to prevent explosions. Used in industrial process monitoring applications. Commonly used in wearable and installed confined space monitors.
Environmental Sensors
Sensors for temperature, pressure and humidity provide environmental measurements. These sensors are often used side-by-side with ElectroChemical (EC), Photoionization Detectors (PIDs) and Non-dispersive Infrared (NDIR) sensors.